<?php if (!defined('ABSPATH')) {
    die;
} // Cannot access directly.
/**
 *
 * Options Class
 *
 * @since 1.0.0
 * @version 1.0.0
 *
 */
if (!class_exists('CSF_Options')) {
    class CSF_Options extends CSF_Abstract
    {

        // constans
        public $unique       = '';
        public $notice       = '';
        public $abstract     = 'options';
        public $sections     = array();
        public $options      = array();
        public $errors       = array();
        public $pre_tabs     = array();
        public $pre_fields   = array();
        public $pre_sections = array();
        public $args         = array(

            // framework title
            'framework_title'         => 'Codestar Framework <small>by Codestar</small>',
            'framework_class'         => '',

            // menu settings
            'menu_title'              => '',
            'menu_slug'               => '',
            'menu_type'               => 'menu',
            'menu_capability'         => 'manage_options',
            'menu_icon'               => null,
            'menu_position'           => null,
            'menu_hidden'             => false,
            'menu_parent'             => '',
            'sub_menu_title'          => '',

            // menu extras
            'show_bar_menu'           => true,
            'show_sub_menu'           => true,
            'show_in_network'         => true,
            'show_in_customizer'      => false,

            'show_search'             => true,
            'show_reset_all'          => true,
            'show_reset_section'      => true,
            'show_footer'             => true,
            'show_all_options'        => true,
            'show_form_warning'       => true,
            'sticky_header'           => true,
            'save_defaults'           => true,
            'ajax_save'               => true,

            // admin bar menu settings
            'admin_bar_menu_icon'     => '',
            'admin_bar_menu_priority' => 50,

            // footer
            'footer_text'             => '',
            'footer_after'            => '',
            'footer_credit'           => '',

            // database model
            'database'                => '', // options, transient, theme_mod, network
            'transient_time'          => 0,

            // contextual help
            'contextual_help'         => array(),
            'contextual_help_sidebar' => '',

            // typography options
            'enqueue_webfont'         => true,
            'async_webfont'           => false,

            // others
            'output_css'              => true,

            // theme
            'theme'                   => 'dark',
            'class'                   => '',

            // external default values
            'defaults'                => array(),

        );

        // run framework construct
        public function __construct($key, $params = array())
        {

            $this->unique   = $key;
            $this->args     = apply_filters("csf_{$this->unique}_args", wp_parse_args($params['args'], $this->args), $this);
            $this->sections = apply_filters("csf_{$this->unique}_sections", $params['sections'], $this);

            // run only is admin panel options, avoid performance loss
            $this->pre_tabs     = $this->pre_tabs($this->sections);
            $this->pre_fields   = $this->pre_fields($this->sections);
            $this->pre_sections = $this->pre_sections($this->sections);

            $this->get_options();
            $this->set_options();
            $this->save_defaults();

            add_action('admin_menu', array(&$this, 'add_admin_menu'));
            add_action('admin_bar_menu', array(&$this, 'add_admin_bar_menu'), $this->args['admin_bar_menu_priority']);
            add_action('wp_ajax_csf_' . $this->unique . '_ajax_save', array(&$this, 'ajax_save'));

            if ($this->args['database'] === 'network' && !empty($this->args['show_in_network'])) {
                add_action('network_admin_menu', array(&$this, 'add_admin_menu'));
            }

            // wp enqeueu for typography and output css
            parent::__construct();
        }

        // instance
        public static function instance($key, $params = array())
        {
            return new self($key, $params);
        }

        public function pre_tabs($sections)
        {

            $result  = array();
            $parents = array();
            $count   = 100;

            foreach ($sections as $key => $section) {
                if (!empty($section['parent'])) {
                    $section['priority'] = (isset($section['priority'])) ? $section['priority'] : $count;
                    $parents[$section['parent']][] = $section;
                    unset($sections[$key]);
                }
                $count++;
            }

            foreach ($sections as $key => $section) {
                $section['priority'] = (isset($section['priority'])) ? $section['priority'] : $count;
                if (!empty($section['id']) && !empty($parents[$section['id']])) {
                    $section['subs'] = wp_list_sort($parents[$section['id']], array('priority' => 'ASC'), 'ASC', true);
                }
                $result[] = $section;
                $count++;
            }

            return wp_list_sort($result, array('priority' => 'ASC'), 'ASC', true);
        }

        public function pre_fields($sections)
        {

            $result  = array();

            foreach ($sections as $key => $section) {
                if (!empty($section['fields'])) {
                    foreach ($section['fields'] as $field) {
                        $result[] = $field;
                    }
                }
            }

            return $result;
        }

        public function pre_sections($sections)
        {

            $result = array();

            foreach ($this->pre_tabs as $tab) {
                if (!empty($tab['subs'])) {
                    foreach ($tab['subs'] as $sub) {
                        $sub['ptitle'] = $tab['title'];
                        $result[] = $sub;
                    }
                }
                if (empty($tab['subs'])) {
                    $result[] = $tab;
                }
            }

            return $result;
        }

        // add admin bar menu
        public function add_admin_bar_menu($wp_admin_bar)
        {

            if (is_network_admin() && ($this->args['database'] !== 'network' || $this->args['show_in_network'] !== true)) {
                return;
            }

            if (!empty($this->args['show_bar_menu']) && empty($this->args['menu_hidden'])) {

                global $submenu;

                $menu_slug = $this->args['menu_slug'];
                $menu_icon = (!empty($this->args['admin_bar_menu_icon'])) ? '<span class="csf-ab-icon ab-icon ' . esc_attr($this->args['admin_bar_menu_icon']) . '"></span>' : '';

                $wp_admin_bar->add_node(array(
                    'id'    => $menu_slug,
                    'title' => $menu_icon . esc_attr($this->args['menu_title']),
                    'href'  => esc_url((is_network_admin()) ? network_admin_url('admin.php?page=' . $menu_slug) : admin_url('admin.php?page=' . $menu_slug)),
                ));

                if (!empty($submenu[$menu_slug])) {
                    foreach ($submenu[$menu_slug] as $menu_key => $menu_value) {
                        $wp_admin_bar->add_node(array(
                            'parent' => $menu_slug,
                            'id'     => $menu_slug . '-' . $menu_key,
                            'title'  => $menu_value[0],
                            'href'   => esc_url((is_network_admin()) ? network_admin_url('admin.php?page=' . $menu_value[2]) : admin_url('admin.php?page=' . $menu_value[2])),
                        ));
                    }
                }
            }
        }

        public function ajax_save()
        {

            $result = $this->set_options(true);

            if (!$result) {
                wp_send_json_error(array('error' => esc_html__('Error while saving the changes.', 'csf')));
            } else {
                wp_send_json_success(array('notice' => $this->notice, 'errors' => $this->errors));
            }
        }

        // get default value
        public function get_default($field)
        {

            $default = (isset($field['default'])) ? $field['default'] : '';
            $default = (isset($this->args['defaults'][$field['id']])) ? $this->args['defaults'][$field['id']] : $default;

            return $default;
        }

        // save defaults and set new fields value to main options
        public function save_defaults()
        {

            $tmp_options = $this->options;

            foreach ($this->pre_fields as $field) {
                if (!empty($field['id'])) {
                    $this->options[$field['id']] = (isset($this->options[$field['id']])) ? $this->options[$field['id']] : $this->get_default($field);
                }
            }

            if ($this->args['save_defaults'] && empty($tmp_options)) {
                $this->save_options($this->options);
            }
        }

        // set options
        public function set_options($ajax = false)
        {

            // XSS ok.
            // No worries, This "POST" requests is sanitizing in the below foreach. see #L337 - #L341
            $response  = ($ajax && !empty($_POST['data'])) ? json_decode(wp_unslash(trim($_POST['data'])), true) : $_POST;

            // Set variables.
            $data      = array();
            $noncekey  = 'csf_options_nonce' . $this->unique;
            $nonce     = (!empty($response[$noncekey])) ? $response[$noncekey] : '';
            $options   = (!empty($response[$this->unique])) ? $response[$this->unique] : array();
            $transient = (!empty($response['csf_transient'])) ? $response['csf_transient'] : array();

            if (wp_verify_nonce($nonce, 'csf_options_nonce')) {

                $importing  = false;
                $section_id = (!empty($transient['section'])) ? $transient['section'] : '';

                if (!$ajax && !empty($response['csf_import_data'])) {

                    // XSS ok.
                    // No worries, This "POST" requests is sanitizing in the below foreach. see #L337 - #L341
                    $import_data  = json_decode(wp_unslash(trim($response['csf_import_data'])), true);
                    $options      = (is_array($import_data) && !empty($import_data)) ? $import_data : array();
                    $importing    = true;
                    $this->notice = esc_html__('Settings successfully imported.', 'csf');
                }

                if (!empty($transient['reset'])) {

                    foreach ($this->pre_fields as $field) {
                        if (!empty($field['id'])) {
                            $data[$field['id']] = $this->get_default($field);
                        }
                    }

                    $this->notice = esc_html__('Default settings restored.', 'csf');
                } else if (!empty($transient['reset_section']) && !empty($section_id)) {

                    if (!empty($this->pre_sections[$section_id - 1]['fields'])) {

                        foreach ($this->pre_sections[$section_id - 1]['fields'] as $field) {
                            if (!empty($field['id'])) {
                                $data[$field['id']] = $this->get_default($field);
                            }
                        }
                    }

                    $data = wp_parse_args($data, $this->options);

                    $this->notice = esc_html__('Default settings restored.', 'csf');
                } else {

                    // sanitize and validate
                    foreach ($this->pre_fields as $field) {

                        if (!empty($field['id'])) {

                            $field_id    = $field['id'];
                            $field_value = isset($options[$field_id]) ? $options[$field_id] : '';

                            // Ajax and Importing doing wp_unslash already.
                            if (!$ajax && !$importing) {
                                $field_value = wp_unslash($field_value);
                            }

                            // Sanitize "post" request of field.
                            if (!isset($field['sanitize'])) {

                                if (is_array($field_value)) {

                                    $data[$field_id] = wp_kses_post_deep($field_value);
                                } else {

                                    $data[$field_id] = wp_kses_post($field_value);
                                }
                            } else if (isset($field['sanitize']) && is_callable($field['sanitize'])) {

                                $data[$field_id] = call_user_func($field['sanitize'], $field_value);
                            } else {

                                $data[$field_id] = $field_value;
                            }

                            // Validate "post" request of field.
                            if (isset($field['validate']) && is_callable($field['validate'])) {

                                $has_validated = call_user_func($field['validate'], $field_value);

                                if (!empty($has_validated)) {

                                    $data[$field_id] = (isset($this->options[$field_id])) ? $this->options[$field_id] : '';
                                    $this->errors[$field_id] = $has_validated;
                                }
                            }
                        }
                    }
                }

                $data = apply_filters("csf_{$this->unique}_save", $data, $this);

                do_action("csf_{$this->unique}_save_before", $data, $this);

                $this->options = $data;

                $this->save_options($data);

                do_action("csf_{$this->unique}_save_after", $data, $this);

                if (empty($this->notice)) {
                    $this->notice = esc_html__('Settings saved.', 'csf');
                }

                return true;
            }

            return false;
        }

        // save options database
        public function save_options($data)
        {

            if ($this->args['database'] === 'transient') {
                set_transient($this->unique, $data, $this->args['transient_time']);
            } else if ($this->args['database'] === 'theme_mod') {
                set_theme_mod($this->unique, $data);
            } else if ($this->args['database'] === 'network') {
                update_site_option($this->unique, $data);
            } else {
                update_option($this->unique, $data);
            }

            do_action("csf_{$this->unique}_saved", $data, $this);
        }

        // get options from database
        public function get_options()
        {

            if ($this->args['database'] === 'transient') {
                $this->options = get_transient($this->unique);
            } else if ($this->args['database'] === 'theme_mod') {
                $this->options = get_theme_mod($this->unique);
            } else if ($this->args['database'] === 'network') {
                $this->options = get_site_option($this->unique);
            } else {
                $this->options = get_option($this->unique);
            }

            if (empty($this->options)) {
                $this->options = array();
            }

            return $this->options;
        }

        // admin menu
        public function add_admin_menu()
        {

            extract($this->args);

            if ($menu_type === 'submenu') {

                $menu_page = call_user_func('add_submenu_page', $menu_parent, esc_attr($menu_title), esc_attr($menu_title), $menu_capability, $menu_slug, array(&$this, 'add_options_html'));
            } else {

                $menu_page = call_user_func('add_menu_page', esc_attr($menu_title), esc_attr($menu_title), $menu_capability, $menu_slug, array(&$this, 'add_options_html'), $menu_icon, $menu_position);

                if (!empty($sub_menu_title)) {
                    call_user_func('add_submenu_page', $menu_slug, esc_attr($sub_menu_title), esc_attr($sub_menu_title), $menu_capability, $menu_slug, array(&$this, 'add_options_html'));
                }

                if (!empty($this->args['show_sub_menu']) && count($this->pre_tabs) > 1) {

                    // create submenus
                    foreach ($this->pre_tabs as $section) {
                        call_user_func('add_submenu_page', $menu_slug, esc_attr($section['title']),  esc_attr($section['title']), $menu_capability, $menu_slug . '#tab=' . sanitize_title($section['title']), '__return_null');
                    }

                    remove_submenu_page($menu_slug, $menu_slug);
                }

                if (!empty($menu_hidden)) {
                    remove_menu_page($menu_slug);
                }
            }

            add_action('load-' . $menu_page, array(&$this, 'add_page_on_load'));
        }

        public function add_page_on_load()
        {

            if (!empty($this->args['contextual_help'])) {

                $screen = get_current_screen();

                foreach ($this->args['contextual_help'] as $tab) {
                    $screen->add_help_tab($tab);
                }

                if (!empty($this->args['contextual_help_sidebar'])) {
                    $screen->set_help_sidebar($this->args['contextual_help_sidebar']);
                }
            }

            add_filter('admin_footer_text', array(&$this, 'add_admin_footer_text'));
        }

        public function add_admin_footer_text()
        {
            $default = 'Thank you for creating with <a href="http://codestarframework.com/" target="_blank">Codestar Framework</a>';
            echo (!empty($this->args['footer_credit'])) ? $this->args['footer_credit'] : $default;
        }

        public function error_check($sections, $err = '')
        {

            if (!$this->args['ajax_save']) {

                if (!empty($sections['fields'])) {
                    foreach ($sections['fields'] as $field) {
                        if (!empty($field['id'])) {
                            if (array_key_exists($field['id'], $this->errors)) {
                                $err = '<span class="csf-label-error">!</span>';
                            }
                        }
                    }
                }

                if (!empty($sections['subs'])) {
                    foreach ($sections['subs'] as $sub) {
                        $err = $this->error_check($sub, $err);
                    }
                }

                if (!empty($sections['id']) && array_key_exists($sections['id'], $this->errors)) {
                    $err = $this->errors[$sections['id']];
                }
            }

            return $err;
        }

        // option page html output
        public function add_options_html()
        {

            $has_nav       = (count($this->pre_tabs) > 1) ? true : false;
            $show_all      = (!$has_nav) ? ' csf-show-all' : '';
            $ajax_class    = ($this->args['ajax_save']) ? ' csf-save-ajax' : '';
            $sticky_class  = ($this->args['sticky_header']) ? ' csf-sticky-header' : '';
            $wrapper_class = ($this->args['framework_class']) ? ' ' . $this->args['framework_class'] : '';
            $theme         = ($this->args['theme']) ? ' csf-theme-' . $this->args['theme'] : '';
            $class         = ($this->args['class']) ? ' ' . $this->args['class'] : '';

            do_action('csf_options_before');

            echo '<div class="csf csf-options' . esc_attr($theme . $class . $wrapper_class) . '" data-slug="' . esc_attr($this->args['menu_slug']) . '" data-unique="' . esc_attr($this->unique) . '">';

            echo '<div class="csf-container">';

            echo '<form method="post" action="" enctype="multipart/form-data" id="csf-form" autocomplete="off" novalidate="novalidate">';

            echo '<input type="hidden" class="csf-section-id" name="csf_transient[section]" value="1">';

            wp_nonce_field('csf_options_nonce', 'csf_options_nonce' . $this->unique);

            echo '<div class="csf-header' . esc_attr($sticky_class) . '">';
            echo '<div class="csf-header-inner">';

            echo '<div class="csf-header-left">';
            echo '<h1>' . $this->args['framework_title'] . '</h1>';
            echo '</div>';

            echo '<div class="csf-header-right">';

            $notice_class = (!empty($this->notice)) ? 'csf-form-show' : '';
            $notice_text  = (!empty($this->notice)) ? $this->notice : '';

            echo '<div class="csf-form-result csf-form-success ' . esc_attr($notice_class) . '">' . $notice_text . '</div>';

            echo ($this->args['show_form_warning']) ? '<div class="csf-form-result csf-form-warning">' . esc_html__('You have unsaved changes, save your changes!', 'csf') . '</div>' : '';

            echo ($has_nav && $this->args['show_all_options']) ? '<div class="csf-expand-all" title="' . esc_html__('show all settings', 'csf') . '"><i class="fas fa-outdent"></i></div>' : '';

            echo ($this->args['show_search']) ? '<div class="csf-search"><input type="text" name="csf-search" placeholder="' . esc_html__('Search...', 'csf') . '" autocomplete="off" /></div>' : '';

            echo '<div class="csf-buttons">';
            echo '<input type="submit" name="' . esc_attr($this->unique) . '[_nonce][save]" class="button button-primary csf-top-save csf-save' . esc_attr($ajax_class) . '" value="' . esc_html__('Save', 'csf') . '" data-save="' . esc_html__('Saving...', 'csf') . '">';
            echo ($this->args['show_reset_section']) ? '<input type="submit" name="csf_transient[reset_section]" class="button button-secondary csf-reset-section csf-confirm" value="' . esc_html__('Reset Section', 'csf') . '" data-confirm="' . esc_html__('Are you sure to reset this section options?', 'csf') . '">' : '';
            echo ($this->args['show_reset_all']) ? '<input type="submit" name="csf_transient[reset]" class="button csf-warning-primary csf-reset-all csf-confirm" value="' . (($this->args['show_reset_section']) ? esc_html__('Reset All', 'csf') : esc_html__('Reset', 'csf')) . '" data-confirm="' . esc_html__('Are you sure you want to reset all settings to default values?', 'csf') . '">' : '';

            echo '</div>';

            echo '</div>';

            echo '<div class="clear"></div>';
            echo '</div>';
            echo '</div>';

            echo '<div class="csf-wrapper' . esc_attr($show_all) . '">';

            if ($has_nav) {

                echo '<div class="csf-nav csf-nav-options">';

                echo '<ul>';

                foreach ($this->pre_tabs as $tab) {

                    $tab_id    = sanitize_title($tab['title']);
                    $tab_error = $this->error_check($tab);
                    $tab_icon  = (!empty($tab['icon'])) ? '<i class="csf-tab-icon ' . esc_attr($tab['icon']) . '"></i>' : '';

                    if (!empty($tab['subs'])) {

                        echo '<li class="csf-tab-item">';

                        echo '<a href="#tab=' . esc_attr($tab_id) . '" data-tab-id="' . esc_attr($tab_id) . '" class="csf-arrow">' . $tab_icon . $tab['title'] . $tab_error . '</a>';

                        echo '<ul>';

                        foreach ($tab['subs'] as $sub) {

                            $sub_id    = $tab_id . '/' . sanitize_title($sub['title']);
                            $sub_error = $this->error_check($sub);
                            $sub_icon  = (!empty($sub['icon'])) ? '<i class="csf-tab-icon ' . esc_attr($sub['icon']) . '"></i>' : '';

                            echo '<li><a href="#tab=' . esc_attr($sub_id) . '" data-tab-id="' . esc_attr($sub_id) . '">' . $sub_icon . $sub['title'] . $sub_error . '</a></li>';
                        }

                        echo '</ul>';

                        echo '</li>';
                    } else {

                        echo '<li class="csf-tab-item"><a href="#tab=' . esc_attr($tab_id) . '" data-tab-id="' . esc_attr($tab_id) . '">' . $tab_icon . $tab['title'] . $tab_error . '</a></li>';
                    }
                }

                echo '</ul>';

                echo '</div>';
            }

            echo '<div class="csf-content">';

            echo '<div class="csf-sections">';

            foreach ($this->pre_sections as $section) {

                $section_onload = (!$has_nav) ? ' csf-onload' : '';
                $section_class  = (!empty($section['class'])) ? ' ' . $section['class'] : '';
                $section_icon   = (!empty($section['icon'])) ? '<i class="csf-section-icon ' . esc_attr($section['icon']) . '"></i>' : '';
                $section_title  = (!empty($section['title'])) ? $section['title'] : '';
                $section_parent = (!empty($section['ptitle'])) ? sanitize_title($section['ptitle']) . '/' : '';
                $section_slug   = (!empty($section['title'])) ? sanitize_title($section_title) : '';

                echo '<div class="csf-section hidden' . esc_attr($section_onload . $section_class) . '" data-section-id="' . esc_attr($section_parent . $section_slug) . '">';
                echo ($has_nav) ? '<div class="csf-section-title"><h3>' . $section_icon . $section_title . '</h3></div>' : '';
                echo (!empty($section['description'])) ? '<div class="csf-field csf-section-description">' . $section['description'] . '</div>' : '';

                if (!empty($section['fields'])) {

                    foreach ($section['fields'] as $field) {

                        $is_field_error = $this->error_check($field);

                        if (!empty($is_field_error)) {
                            $field['_error'] = $is_field_error;
                        }

                        if (!empty($field['id'])) {
                            $field['default'] = $this->get_default($field);
                        }

                        $value = (!empty($field['id']) && isset($this->options[$field['id']])) ? $this->options[$field['id']] : '';

                        CSF::field($field, $value, $this->unique, 'options');
                    }
                } else {

                    echo '<div class="csf-no-option">' . esc_html__('No data available.', 'csf') . '</div>';
                }

                echo '</div>';
            }

            echo '</div>';

            echo '<div class="clear"></div>';

            echo '</div>';

            echo '<div class="csf-nav-background"></div>';

            echo '</div>';

            if (!empty($this->args['show_footer'])) {

                echo '<div class="csf-footer">';

                echo '<div class="csf-buttons">';
                echo '<input type="submit" name="csf_transient[save]" class="button button-primary csf-save' . esc_attr($ajax_class) . '" value="' . esc_html__('Save', 'csf') . '" data-save="' . esc_html__('Saving...', 'csf') . '">';
                echo ($this->args['show_reset_section']) ? '<input type="submit" name="csf_transient[reset_section]" class="button button-secondary csf-reset-section csf-confirm" value="' . esc_html__('Reset Section', 'csf') . '" data-confirm="' . esc_html__('Are you sure to reset this section options?', 'csf') . '">' : '';
                echo ($this->args['show_reset_all']) ? '<input type="submit" name="csf_transient[reset]" class="button csf-warning-primary csf-reset-all csf-confirm" value="' . (($this->args['show_reset_section']) ? esc_html__('Reset All', 'csf') : esc_html__('Reset', 'csf')) . '" data-confirm="' . esc_html__('Are you sure you want to reset all settings to default values?', 'csf') . '">' : '';
                echo '<div class="csf-menu" title="显示选项菜单"><i class="fas fa-outdent"></i></div>';
                echo '</div>';

                echo (!empty($this->args['footer_text'])) ? '<div class="csf-copyright">' . $this->args['footer_text'] . '</div>' : '';

                echo '<div class="clear"></div>';
                echo '</div>';
            }

            echo '</form>';

            echo '</div>';

            echo '<div class="clear"></div>';

            echo (!empty($this->args['footer_after'])) ? $this->args['footer_after'] : '';

            echo '</div>';

            do_action('csf_options_after');
        }
    }
}
